pfssize - Resize frames

       Please report bugs and comments to Rafal Mantiuk <mantiuk@mpi-sb.mpg.de>.

                                                                                                      pfssize(1)

       Resize all frames and all channels in the stream. Note that resampling is done on each channel as it is -
       for color images resampling is usually done in linear (not gamma corrected) XYZ color space.

       pfsin memorial.hdr | pfssize -r 0.25 | pfsout memorial_small.hdr

              Lower the resolution of memorial.hdr four times.

       pfssize - Resize frames

       --x <new_width>, -x <new_width>

              New x resolution in pixels.

       --y <new_height>, -y <new_height>

              New y resolution in pixels.

       --ratio <scale_ratio>, -r <scale_ratio>

              Resize both width and height using the given ratio. Ratio equal 1 is the original size, lower than
              1 makes the frames smaller and greater than 1, enlarges the frames.

       --minx <max_width>, --miny <max_heigh>

              Make sure that the resulting image has at least  <min_width>  width  and/or  <min_height>  height.
              Cannot be used in combination with -x, -y and --ratio.

       --maxx <max_width>, --maxy <max_heigh>

              Make  sure  that  the  resulting  image  has at most <max_width> width and/or <max_height> height.
              Cannot be used in combination with -x, -y and --ratio.

       --filter <filter-name>, -f <filter-name>

              Use filter <filter-name> for upsampling (on downsampling, box filter is  always  used).  Available
              filters:

              BOX Box filter. This is the fastest filter, but it also causes visible aliasing artifacts.

              LINEAR (default) Bi-linear filter.

              MITCHELL  Mitchell  filter.  From  MitchellandNetravali,ReconstructionFiltersinComputerGraphics,InComputerGraphics,vol.22(4)1988. Since the filter contains negative parts, it  may
              cause halo artifacts and it may result in negative values for HDR images.

pfsin(1) pfsout(1)

pfssize  [--x  <new_width>]  [--y  <new_height>]  [--ratio  <scale_ratio>]  [--maxx  <max_width>] [--maxy
       <max_heigh>] [--minx <max_width>] [--miny <max_heigh>] [--filter <filter-name>]